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Rifles, Reloading, Optics, Equipment
Reloading
Sinclair Neck Turning Mandrel Question
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<blockquote data-quote="Mikecr" data-source="post: 2442785" data-attributes="member: 1521"><p>I think what I like the best about Sinclair's latest mandrel die is that it allows mandrels to float for truer expansion.</p><p>This also provided me with an ability to measure pre-seating forces with a load cell installed in the mandrel die cap, which the floating mandrels press against.</p><p>The Sinclair system has become a standard I guess, as other folks are offering compatible mandrels for it.</p><p>That's a good thing.</p><p></p><p>I don't know about the other systems old & new, but be careful about any that fix mandrels as rigid.</p><p>Mandrel expansion is not for straightening necks,, that's what fire forming does.</p><p>But floating mandrels do not pull necks out of straight/centered, as die buttons sometimes do, or rigid mandrels in a poor alignment could.</p><p>Hope that makes sense</p></blockquote><p></p>
[QUOTE="Mikecr, post: 2442785, member: 1521"] I think what I like the best about Sinclair's latest mandrel die is that it allows mandrels to float for truer expansion. This also provided me with an ability to measure pre-seating forces with a load cell installed in the mandrel die cap, which the floating mandrels press against. The Sinclair system has become a standard I guess, as other folks are offering compatible mandrels for it. That's a good thing. I don't know about the other systems old & new, but be careful about any that fix mandrels as rigid. Mandrel expansion is not for straightening necks,, that's what fire forming does. But floating mandrels do not pull necks out of straight/centered, as die buttons sometimes do, or rigid mandrels in a poor alignment could. Hope that makes sense [/QUOTE]
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Sinclair Neck Turning Mandrel Question
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